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    九大影響模具結構及模具系統因素

    網址:www.ruposon.com  2021-06-22  作者:admin    閱讀:

    九大影響模具結構及模具系統因素
    Nine major factors affecting die structure and die system
    ①型腔布置。
    (1) Cavity layout.
    根據塑件的幾何結構特點、尺寸精度要求、批量大小、模具制造難易、模具成本等確定型腔數量及其排列方式。對于注射模來說,塑料制件精度為3級和3a級,重量為5克,采用硬化澆注系統,型腔數取4-6個;塑料制件為一般精度(4-5級),成型材料為局部結晶材料,型腔數可取16-20個;塑料制件重量為12-16克,型腔數取8-12個;而重量為50-100克的塑料制件,型腔數取4-8個。
    According to the geometric structure characteristics of plastic parts, dimensional accuracy requirements, batch size, difficult to manufacture and cost of the mould, the number of cavity and its arrangement are determined. For injection moulds, the precision of plastic parts is grade 3 and 3a, the weight is 5g, using hardening casting system, the number of cavity is 4-6; plastic parts are general precision (grade 4-5), forming materials are local crystalline materials, the number of cavity can be 16-20; plastic parts weigh 12-16g, the number of cavity is 8-12; and plastic parts weigh 50-100g, the number of cavity is 4-8.
    對于無定型的塑料制件建議型腔數為24-48個,16-32個和6-10個。當再繼續增加塑料制件重量時,就很少采用多腔模具。7-9級精度的塑料制件,最多型腔數較之指出的4-5級精度的塑料增多至50%。
    For amorphous plastic parts, the recommended number of cavity is 24-48, 16-32 and 6-10. When the weight of plastic parts continues to increase, multi-cavity dies are seldom used. For plastic parts with grade 7-9 accuracy, the maximum number of cavities is 50% higher than that of plastics with grade 4-5 accuracy.
    ②確定分型面。分型面的位置要有利于模具加工,排氣、脫模及成型操作,塑料制件的表面質量等。
    (2) Determine the parting surface. The position of parting surface should be beneficial to die processing, exhaust, demoulding and shaping operation, surface quality of plastic parts, etc.
    ③確定澆注系統(主澆道、分澆道及澆口的形狀、位置、大?。┖团艢庀到y(排氣的方法、排氣槽位置、大?。?。
    (3) Determine the gating system (shape, position and size of main runner, sub-runner and gate) and exhaust system (exhaust method, location and size of exhaust slot).
    ④選擇頂出方式(頂桿、頂管、推板、組合式頂出),決定側凹處理方法、抽芯方式。
    (4) Choose the ejection method (jacking rod, pipe jacking, pushing plate, combined ejection), determine the side concave treatment method and core pulling method.
    ⑤決定冷卻、加熱方式及加熱冷卻溝槽的形狀、位置、加熱元件的安裝部位。
    _Determine the cooling and heating mode, the shape and position of the cooling groove and the installation position of the heating element.
    ⑥根據模具材料、強度計算或者經驗數據,確定模具零件厚度及外形尺寸,外形結構及所有連接、定位、導向件位置。
    _According to the die material, strength calculation or empirical data, determine the thickness and shape size of the die parts, the shape structure and the position of all joints, positioning and guide parts.
    ⑦確定主要成型零件,結構件的結構形式。
    _Determine the structural form of the main forming parts and structural parts.
    ⑧考慮模具各部分的銅鐘 一次性止血帶 標志樁模具 鋼絲輪 流水槽模具 防撞墻模具 檢查井鋼模具 不銹鋼鑄件 模鍛件強度,計算成型零件工作尺寸。
    _Considering the strength of each part of the die, the working dimensions of the forming parts are calculated.
    ⑨繪制模具圖要求按照國家制圖標準繪制,但是也要求結合本廠標準和國家未規定的工廠習慣方法。
    _Drawing mould drawings requires drawing according to the National Drawing standards, but also requires combining the factory standards and the customary methods of factories not stipulated by the state.

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